BRIZZOLARI, E., and G. ROVATI. “Alcune Prove Sperimentali Con l’impiego Di Dispositivi a Correnti Focalizzate”. Annals of Geophysics 31, no. 1 (November 25, 1978): 261–275. Accessed May 30, 2026. https://www.annalsofgeophysics.eu/index.php/annals/article/view/4753.